CAPACITOR
To provide a capacitor which reduces the ESR (equivalent series resistance).The capacitor is provided with (a) a pair of electrode layers 15 and 17, (b) a dielectric layer 16 disposed between a pair of the electrode layers 15 and 17 and ...

VARIABLE CAPACITANCE ELEMENT AND FILTER CIRCUIT
To efficiently vary the capacitance of a variable capacitance element using a metal oxide film.The variable capacitance element includes: the metal oxide film having a perovskite structure; a first and a second electrode film having the ...

SWITCHED CAPACITOR
To provide a new switched capacitor where a digital switching mechanism and an analog switching mechanism are unified.The switched capacitor includes: a driving arm which has a plate-like elastic body at least one end of which is fixed t...

VARIABLE CAPACITOR AND ELECTRONIC DEVICE
To provide a variable capacitor and an electronic device, having a structure enabling setting of field sensitivity with respect to a control voltage irrespective of a breakdown voltage with respect to a signal voltage.The variable capaci...

JP2009268122A

TUNABLE MATCHING CIRCUIT
To provide a tunable matching circuit of low-loss in RF.A ferroelectric material is used in order to produce a low-loss tunable capacitor 32 and inductor 31 for using in a matching circuit 22. The matching circuit 22 is provided with a c...

ELECTRET COMPOSES OF POLYPHENYLENE ETHER SYSTEM FOAM
To provide a resin foam electret which can convert electric energy into mechanical energy, or convert the mechanical energy into the electric energy, is excellent in charge retention nature at high temperature, and can easily be manufact...

ELECTRET AND ELECTROSTATIC INDUCTION TYPE CONVERSION DEVICE
To provide an electret excellent in thermal stability of an electric charge and to provide an electrostatic induction type conversion device with the electret.The electret includes a layer comprising organic/inorganic composite materials...

JP2009246327A

ELECTRET MANUFACTURING METHOD AND APPARATUS
To cause a dielectric with edges and holes to be efficiently charged.When a protrusion 110 is cooled down, the protrusion 110 contracts and the diameter of the protrusion 110 becomes smaller than the diameter of a hole 2. Then, after the...

VARIABLE CAPACITOR
To obtain a variable capacitor which can control its capacitance, using a simple structure through easy and simple control.Fixed capacitors C1 to C5 are mounted on a substrate 3 which are connected in parallel. FET 1 to FET 4 are located...

METHOD FOR MANUFACTURING MICRO CONDENSER MICROPHONE
To provide a method for manufacturing a micro condenser microphone, which can achieve an electret process of a dielectric film of a MEMS microphone chip by using inexpensive manufacturing facilities of simple structure and can improve pr...

ELECTRET AND ELECTRET CAPACITOR MICROPHONE
To provide an electret having high surface charge density, and to provide an electret capacitor microphone that has the electret.The electret contains a fluorine aromatic resin consisting mainly of a fluorine aromatic polymer. The electr...

JP2009088100A

MATERIAL FOR ELECTRET, AND ELECTRET COMPONENT USING THE SAME
To provide a material for an electret having an excellent adhesion to a metallic base and a high heat resistive charge storage rate, and to provide an electret component using the electret material.A material 10 of an electret includes a...

JP2009076788A

LAMINATED CERAMIC ELEMENT AND MOUNTING STRUCTURE THEREOF
To provide a laminated ceramic element capable of precisely detecting temperature, and to provide a mounting structure thereof.The mounting structure has an NTC capacitor 1, an NTC thermistor, a choke coil, a switching circuit, a feedbac...

JP2009076613A

ELECTROSTATIC OPERATION DEVICE
To provide an electrostatic operation device capable of suppressing discharge of electric charges induced at an electrode through a spacer (projection portion) while suppressing contact between a first electrode portion and a second elec...

EBG ELEMENT, ITS ARRAY STRUCTURE, AND HIGH-FREQUENCY CIRCUIT
To provide an EBG element capable of successfully performing leak cutoff to a broadband high-frequency circuit.An antenna 102 on an insulating film 101 of a substrate 100 is connected to a transmission path 104 in the insulating film 101...

JP2009016613A

CAPACITOR ARRAY
To miniaturize a device and to improve reliability.In the capacitor array incorporating a plurality of variable capacitors C1-C4, a plurality of positive and negative electrodes are alternately stacked for the respective variable capacit...